Be ignorant antonyms

What is the opposite word for Be ignorant?

• be cognizant
• caught on
• apperceive
• re-collect
• be schooled
• get acquainted
• make sense of
• get the idea
• gain mastery
• memorise
• get hold of
• cognize
• getting hold of
• know
• have down pat
• on top of
• keep up on
• be master of
• beat the game
• beat the system
• be with it
• get down cold
• be conscious of
• be versed
• feel certain
• keep forever
• master
• have information
• catch on
• fix in the mind